M6-1.0 x 20 mm Double End Stud (Tap End ~1.25d Long) DIN 939, Interference Fit, Class 8.8, Plain Finish (no rust protection)
STA636-610
https://www.fastenermart.com/mm5/graphics/00000001/DIN939.gif
57.99
543.48
2
57.99
20.00
pcs
543.48
250.00
pcs

DIN 939 Specifications